Hydraulic lifting jack



FIG. 1 is a front view of a hydraulic lifting jack showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an enlarged left side view thereof;

FIG. 6 is an enlarged right side view thereof;

FIG. 7 is a front perspective view thereof; and

FIG. 8 is a rear perspective view in an alternate position.

The grey values applied to the drawings are to show contrast in appearance. 

CLAIM The ornamental design for a HYDRAULIC LIFTING JACK as shown and described. 